interprocess::shared_ptr fails to compile if used with a scoped_allocator

[Markus Mathes <Markus.Mathes@…>]

The following code will fail to compile using at least gcc 4.6.3

#include <memory>
#include <boost/container/scoped_allocator.hpp>
#include <boost/interprocess/smart_ptr/shared_ptr.hpp>
namespace bip=boost::interprocess;

int main(int argc, char* argv[]) {

   class MyDeleter {
   public:
      typedef std::allocator<void>::pointer pointer;
      void operator()(const pointer& ptr){};
   };

   typedef boost::container::scoped_allocator_adaptor< std::allocator<void> > Allocator;
   
   Allocator alloc;

   // next line will fail to compile due to a inaccessible base type error
   bip::shared_ptr<int,Allocator::outer_allocator_type,MyDeleter> test1(new int(),alloc);

   //using the outer_allocator will work fine
   bip::shared_ptr<int,Allocator::outer_allocator_type,MyDeleter> test2(new int(),alloc);
};

[Markus Mathes <Markus.Mathes@…>]

Typo while copying the code. The line to fail must read:

// next line will fail to compile due to a inaccessible base type error
bip::shared_ptr<int,Allocator,MyDeleter> test1(new int(),alloc);

[Markus Mathes <Markus.Mathes@…>]

quick hack

[Markus Mathes <Markus.Mathes@…>]

Another workaround ist to use:

boost::interprocess:shared_ptr<int,container::outermost_allocator<Allocator>::type,MyDeleter>

to remove the scoped allocator capabilities which anyway are not needed ...

[Ion Gaztañaga]

Thanks for the report, the problem was in the "destroy" function, where a proper static_cast was needed.

[Ion Gaztañaga]

(In [85587]) Fixes #8976

[Markus.Mathes@…]

Thanks for fixing!